Add an explain method to the classifiers
Add a test for the explain function
Add an explain function
Tests for classifiers' explain functions
Docstrings!
Add an explain method to the classifiers
Add a test for the explain function
Add an explain function
Tests for classifiers' explain functions
Docstrings!
Remove classify functions

They've all been bumped to the superclass.
Also, split tuple onto different lines, not strings.
Add an explain function, implement classify
Merge branch 'explain-scoring' of github.com:iankronquist/spicedham into explain-scoring

Conflicts:
	spicedham/nonsensefilter.py
Merge pull request #36 from iankronquist/explain-scoring

Explain scoring